Best Case/Worst Case: 2013 NFL Season Preview for the San Francisco 49ers

With the start of the 2013 NFL season only weeks away, we're set to evaluate all 32 teams and their chances of reaching MetLife Stadium for Super Bowl XLVIII in February.

Join Bleacher Report's Matt Miller, Josh Zerkle and Aaron Nagler as they break down the major offseason moves, the biggest draft picks and the likely heroes for all 32 NFL teams. We'll also offer our best-case and worst-case scenarios for each team's season and offer up our predictions for how far each team will advance through the NFL playoffs…if we think they can get there.

We kick things off with the San Francisco 49ers, who finished 11-4-1 and won the NFC Championship in 2012.

Check out our takes in the video above and leave your own thoughts and predictions in the comments below. Look for all 32 of our team previews and our other NFL preseason videos.